1670 (6 Aug) FL from Bristol to London, with divided Bishop's mark at right, part of wax seal on back, fine (Image)

Est.US$150

1840 (6 May) FL to Edinburgh, with framed "Arbroath May 6,1840" departure datestamp, with red Paid 7 May 1840 alongside, boxed "Paid" hs at top, fine usage (the world's first-ever postage stamp, The Penny Black was officially issued on May 6, 1840. This letter from Arbroath in Scotland is a fine collateral item) (Image)

Est.US$1,000

1840 1p black, Plate 5, horizontal pair, lettered "K-H/K-I", neat red Maltese Cross cancel, full to close but clear margins, fine, cat. $1200 (Cat No. 1) (Image)

Cat. $1200, Est.US$500

1841 1p red brown, lettered "A-K", h.r., full to large margins all around, nice color, v.f. (SG 8) cat. £600 (Cat No. 3) (Image)

Cat. £600, Est.US$250

1859-62 three outer FLs to Lima, Peru, each franked with a horizontal pair of 1sh green, with red London and "Panama" transit pmks, minor flaws, mostly fine (Cat No. SG 71-73) (Image)

Est.US$400

1862 4p pale red, Plate 3, unused with part original gum (certificate harshly states "traces of original gum"), some toning, otherwise fine, with 2014 BPA certificate (SG 80) cat. £2000 (Cat No. 34) (Image)

Cat. £2000, Est.US$250

1865 3p rose, Plate 4, lettered E-F, unused (regummed), nice color, with 2013 BPA certificate (SG 92) cat. £2500 (Cat No. 44) (Image)

Cat. £2500, Est.US$300

1866 (18 Sep) outer FL from London to RIGA, franked with single 1p red and four 2p blue, tied by indistinct pmks, with red "PD" and blue "England per Aachen Franco" (19.9) forwarding handstamp, another framed "Franco" in red, London dispatch and Riga arrival pmks on back (Image)

Est.US$200

1867 5sh rose, Plate 2, lettered G-H, unused and well centered, fresh color, signed Diena, etc., with 2013 BPA certificate ("unused, with small part original gum, which has been spread over a thin at upper left"). A rare stamp unused, fine appearance (SG 127) cat. £15000 (Cat No. 57) (Image)

Cat. £15000, Est.US$3,000

1882 5sh rose, Plate 4, lettered A-F, bluish paper, watermarked Anchor, heavy cancel, small faults, fine appearance (SG 130) cat. £4000 (Cat No. 90) (Image)

Cat. £4000, Est.US$500

1882 £5 orange, White Paper, barest trace of a hinge (appears n.h.), beautiful color, fresh and v.f. example of this high value, with 1958 BPA, 1973 Diena and 2015 Royal certificates (SG 137) cat. £12500 (Cat No. 93) (Image)

Cat. £12500, Est.US$7,000

1884 £1 brown violet, watermarked Crowns, central cancel, few light perf. stains, otherwise fine (SG 185) cat. £3000 (Cat No. 110) (Image)

Cat. £3000, Est.US$500

1887 5p lilac and blue, Die I, l.h., fresh and fine, with 1994 Brandon certificate (SG 207) cat. £800 (Cat No. 118a) (Image)

Cat. £800, Est.US$250

1914-18 Lord Roberts Memorial Fund for Disabled Soldiers, collection of 129 multicolored patriotic vignettes, portraits of various notable Allies of the Empire, Royal family, Rulers, Statesmen, etc., including Edith Cavell, Churchill, Cardinal Mercier, Kitchener, Generals Foch and Joffre and others (Image)

Est.US$500

1934 Seahorses, Waterlow Printing, set of three, n.h., well centered, fresh and v.f., cat. $1275 (Cat No. 222-224) (Image)

Cat. $1275, Est.US$500

1935 Silver Jubilee, two unexploded 3sh booklets, fine-v.f. (Image)

Est.US$150

1961 3p Post Office Savings Bank, orange omitted, l.h., v.f., with 2002 APS certificate (SG 624Aa) cat. £600 (Cat No. 380a) (Image)

Cat. £600, Est.US$150

1902 Government Parcels, 9p ultramarine and violet, l.h., creases, v.f. appearance, with 2013 BPA certificate (SG O77) cat. £650 (Cat No. O42) (Image)

Cat. £650, Est.US$150

1918 (9 May) free frank cover to England, Field Post Office and "0175" endorsement, oval "PE/C/21" censor strike, some wear and tear, otherwise fine (Image)

Est.US$150

1876 cover franked with 2 1/2p Victoria, tied by "C" in bars, endorsed "Via Varna", with red "British Post Office Constantinople" departure pmk alongside, sent to Manchester, backflap missing, with arrival pmk. Also included is a 1p stationery card, canceled "F 87", with corresponding Smyrna at left, sent in 1885 to Liverpool, fine (Image)

Est.US$200

1893 40pa handstamped surcharge (type 1, with broken "S") on Great Britain 1/2d vermilion, cancelled by B.P.O. Constantinople 27.2.93 cds on cover addressed to Germany, with additional Constantinople cds and Sayn (3.3.93) arrival pmks, fine and scarce usage, with 2011 BPA certificate. This provisional surcharge was in use for five days (Feb 25-29), only at the Constantinople and Stamboul post offices (Cat No. SG 7) (Image)

Est.US$400

1921 18 3/4pi on 1sh bister brown, overprinted "Specimen" (Samuel Type GB 23), v.f., with 2001 BPA certificate (Cat No. SG 47S) (Image)

Est.US$150